CORRUPT HEAP: Bad head at 0x3ffe35b4. Expected 0xabba1234 got 0x3ffe0454

[mrezzaaa]

Describe the bug Running streaming to RTDB. Crash after 20mins above. I think when regenerating token.

To Reproduce Separating task between main loop and firebase handling (Run on core #0). No time blocking execution, that's why i used different task and different core. I use core 0 esp32 for network handling. On stream connection established, free heap about 25-30% available

 void loop(){
            if(WiFi.status() == WL_CONNECTED){
                if(Firebase.ready()){
                    state.firebaseconnected = true;
                    if(firebase.connection.isStream() || !Firebase.isTokenExpired()){
                        digitalWrite(PIN::LED,HIGH);
                        state.previousFirebaseConnected = millis();
                        state.firebaseconnected = true;
                    }
                    else{
                        state.firebaseconnected = false;
                    }
                }   
                else{
                    Serial.println("Firebase not ready");
                    state.devicestate = "Server Unready";
                    digitalWrite(PIN::LED,LOW);
                    Firebase.refreshToken(&firebase.config);
                    if(state.collector == false){
                        if (!Firebase.RTDB.beginMultiPathStream(&firebase.connection, "/")){
                            Serial.printf("stream begin error, %s\n\n", firebase.connection.errorReason().c_str());
                        }
                        else{
                            Serial.println("Restream success");
                        }
                    }
                }
                if(millis() - state.previousFirebaseConnected > firebaseTimeout){
                    Serial.println("Timeout Firebase.Restarting...");
                    ESP.restart();
                }
            }
            else{
                Serial.println("Wifi disconnected");
                state.devicestate = "WIFI DISCONNECTED";
            }
        }

Error debug

CORRUPT HEAP: Bad head at 0x3ffe35b4. Expected 0xabba1234 got 0x3ffe0454

assert failed: multi_heap_free multi_heap_poisoning.c:253 (head != NULL)

Backtrace:0x400839f1:0x3fff49000x40093fb9:0x3fff4920 0x400999d1:0x3fff4940 0x40099617:0x3fff4a70 0x40083eb1:0x3fff4a90 0x40099a01:0x3fff4ab0 0x401901b9:0x3fff4ad0 0x400fddd1:0x3fff4af0 0x401b1b0a:0x3fff4b10 0x400faeaa:0x3fff4b30 0x400fd95d:0x3fff4b50 0x400f8e04:0x3fff4b70 0x400f79ef:0x3fff4b90 0x400f7c15:0x3fff4c40 0x400f7c7d:0x3fff4c60 0x400f7cb1:0x3fff4c80 

  #0  0x400839f1:0x3fff4900 in panic_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/panic.c:402
  #1  0x40093fb9:0x3fff4920 in esp_system_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/esp_system.c:128
  #2  0x400999d1:0x3fff4940 in __assert_func at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/assert.c:85
  #3  0x40099617:0x3fff4a70 in multi_heap_free at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/multi_heap_poisoning.c:253
      (inlined by) multi_heap_free at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/multi_heap_poisoning.c:245
  #4  0x40083eb1:0x3fff4a90 in heap_caps_free at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/heap_caps.c:340
  #5  0x40099a01:0x3fff4ab0 in free at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/heap.c:39
  #6  0x401901b9:0x3fff4ad0 in operator delete(void*) at /builds/idf/crosstool-NG/.build/HOST-x86_64-apple-darwin12/xtensa-esp32-elf/src/gcc/libstdc++-v3/libsupc++/del_op.cc:49
  #7  0x400fddd1:0x3fff4af0 in FB_TCP_Client::~FB_TCP_Client() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/wcs/esp32/FB_TCP_Client.cpp:52
  #8  0x401b1b0a:0x3fff4b10 in Firebase_Signer::freeClient(FB_TCP_Client**) at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/signer/Signer.cpp:852
      (inlined by) Firebase_Signer::freeClient(FB_TCP_Client**) at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/signer/Signer.cpp:846
  #9  0x400faeaa:0x3fff4b30 in Firebase_Signer::reconnect() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/signer/Signer.cpp:1814
  #10 0x400fd95d:0x3fff4b50 in Firebase_Signer::tokenReady() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/signer/Signer.cpp:2163
  #11 0x400f8e04:0x3fff4b70 in FirebaseData::tokenReady() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/session/FB_Session.cpp:870
  #12 0x400f79ef:0x3fff4b90 in FB_RTDB::handleStreamRead(FirebaseData*) at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:651
  #13 0x400f7c15:0x3fff4c40 in FB_RTDB::readStream(FirebaseData*) at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:614
  #14 0x400f7c7d:0x3fff4c60 in FB_RTDB::mRunStream() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:919
      (inlined by) FB_RTDB::mRunStream() at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:893
  #15 0x400f7cb1:0x3fff4c80 in FB_RTDB::runStreamTask(FirebaseData*, char const*)::{lambda(void*)#1}::_FUN(void*) at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:850
      (inlined by) _FUN at .pio/libdeps/esp32doit-devkit-v1/Firebase Arduino Client Library for ESP8266 and ESP32/src/rtdb/FB_RTDB.cpp:857

Expected behavior When token is expired, regenerate token (refresh token) and establish connection again.

IDE and its version:

• PlatformIO with Arduino environment
• Version core 6.1.7 and home 3.4.4
• Espressif library 5.1.0

[mobizt]

You should not run time and mem consuming tasks on core 0 especially networking task.

Please run your task on core 1 and debug it.

[mobizt]

Your device free Heap is very critical and if you don't have much free memory available, I recommend calling this in loop. https://github.com/mobizt/Firebase-ESP-Client/blob/d2fce37b28a29dfa37fa97e1ef37f87983d90a13/examples/RTDB/DataChangesListener/Callback/Callback.ino#L194

With this, no memory was reserved, and stream will run in loop instead of FreeRTOS task and stream callback will get call as normally.

[mrezzaaa]

Ok, ill try. I will update later

[mrezzaaa]

It works! Thank you sir